docs: def create(self, model_name):
      """Create a model.
  
      Args:
        model_name: the short name of the model, such as "iris".
      Returns:
        If successful, returns informaiton of the model, such as
        {u'regions': [u'us-central1'], u'name': u'projects/myproject/models/mymodel'}
      Raises:
        If the model creation failed.
      """
      body = {'name': model_name}
      parent = 'projects/' + self._project_id
      # Model creation is instant. If anything goes wrong, Exception will be thrown.
      return self._api.projects().models().create(body=body, parent=parent).execute()